import turtle
# 画彩虹
# 调整颜色
turtle.ht()
turtle.pensize(13)
#画第一道红色的彩虹
turtle.pencolor('red')
turtle.left(90)
turtle.circle(100, 180)
turtle.penup()
turtle.goto(-13, 0)
turtle.pendown()
# 画第二道彩虹
turtle.pencolor('orange')
turtle.left(180)
turtle.circle(87, 180)
turtle.penup()
turtle.goto(-26, 0)
turtle.pendown()
# 画第三道彩虹
turtle.pencolor('yellow')
turtle.left(180)
turtle.circle(74, 180)
turtle.penup()
turtle.goto(-39, 0)
turtle.pendown()
# 画第四道彩虹
turtle.pencolor('green')
turtle.left(180)
turtle.circle(61, 180)
turtle.penup()
turtle.goto(-52, 0)
turtle.pendown()
# 画第5道彩虹
turtle.pencolor('blue')
turtle.left(180)
turtle.circle(48, 180)
turtle.penup()
turtle.goto(-65, 0)
turtle.pendown()
# 画第6道彩虹
turtle.pencolor('purple')
turtle.left(180)
turtle.circle(35, 180)
turtle.penup()
turtle.goto(-78, 0)
turtle.pendown()
# 画第7道彩虹
turtle.pencolor('pink')
turtle.left(180)
turtle.circle(22, 180)
turtle.penup()
turtle.goto(-91, 0)
turtle.pendown()

# 打完收工
turtle.done()